文献类型：期刊文献

英文题名：Nutrients removal from swine wastewater by struvite precipitation recycling technology with the use of Mg3(PO4)2 as active component

作者：Huang, Haiming Liu, Jiahui Wang, Sufeng Jiang, Yang Xiao, Dean Ding, Li Gao, Faming

第一作者：Huang, Haiming

通信作者：Huang, Haiming

机构：[1] Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China; [2] College of Resource and Environmental Engineering, Guizhou Institute of Technology, Guiyang, 550003, China

第一机构：Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China

通信机构：Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China

年份：2016

卷号：92

起止页码：111-118

外文期刊名：Ecological Engineering

收录：EI(收录号：20161502224310);Scopus(收录号：2-s2.0-84962339919)

语种：英文

外文关键词：Efficiency - Nutrients - Precipitation (chemical) - Ionic strength - Sodium - Sodium alginate - Mammals - Surface plasmon resonance - Wastewater reclamation - pH

摘要：The recovery and removal of nutrients from swine wastewater was investigated by employing a struvite recycling process, which used magnesium phosphate (MP) as the active component. In this study, the effect of organic matters (sodium alginate, bovine albumin and acetic acid) in swine wastewater on the crystallization of struvite and the feasibility of MP as the phosphate and magnesium sources of struvite precipitation were first evaluated. The results demonstrated that sodium alginate and bovine albumin could slightly influence the crystallization of struvite while acetic acid did not. Using MP as the phosphate and magnesium sources of struvite precipitation could achieve a removal efficiency of the total ammonia nitrogen (TAN) close to that of using pure chemicals (MgCl26H2O and Na2HPO412H2O). The results of struvite pyrgenation revealed that the optimal pyrogenation condition of struvite was at Mg(OH)2:NH4+ 1:1 and temperature 150 °C for 3 h, at which the main pyrogenation product was MP. Recycling the pyrolysate at pH 8.5 could achieve a TAN removal of 78%. When the pyrolysate was recycled for six cycles, the TAN removal efficiency could be maintained above 70%, and 67% of the struvite precipitation cost could be reduced compared to using pure chemicals. ? 2016 Elsevier B.V..